Much like it's sister sex position, the Eiffel Tower, this requires a female (standing up but bent over) and two males on either side of her. Whilst male genitalia enter female orifices, the two males then put their arms and hands up (like the letter 'H') and wave around. Thus, the Wavy H.

Jordan and Jesse were bored with Ashley and the normal, everyday Eiffel Tower, so they decided to give her the Wavy H.